Public water system record
Mountain Lakes Water Dep
Serves Mountain Lakes, Morris County, NJ · 4,012 people served
Federal records show no health-based violations and 10 monitoring/reporting issues for Mountain Lakes Water Dep in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 10
Key facts
- Mountain Lakes Water Dep draws water from 4 wells.
- Most recent formal enforcement: administrative penalty by New Jersey, December 2008.
- Record on file since 1996, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 1 lead and 110 unknown out of 1,528 service lines.
Check whether Mountain Lakes Water Dep serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2025 | Active |
|
Chlorine
Monitoring and reporting
|
Aug 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Chlorine
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Active |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2021 | Resolved |
Full record since 1996
EPA's records for Mountain Lakes Water Dep go back to 1996. Before October 19, 2016 they list no health-based violations and 310 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 3 |
| 2000s | 0 | 303 |
| 2010 to October 18, 2016 | 0 | 4 |
| 2020s | 0 | 10 |
Enforcement actions
New Jersey regulators took 1 formal enforcement action against Mountain Lakes Water Dep in 2008. The most recent was an administrative penalty in December 2008.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 31, 2008 | New Jersey | Administrative penalty | 3 violations: Nitrate |
Where the water comes from
Mountain Lakes Water Dep draws water from 4 wells. 1 other public water system has an emergency connection to Mountain Lakes Water Dep.
Annual water quality report
Mountain Lakes Water Dep must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Jersey.
Certified drinking water labs by state EPA guidance for private wells